| Unique Bronzes Found at Mahiyangana | Paranavitana | Ceylon Today | 1952 | 1 | 1 | 14 - 17 | History |
| Unique Carvings on a Makara Wingstone from an Ancient Shrine at Anuradhapura | Perera | Journal of the Royal Asiatic Society | 1973 | XVII New Series | N/A | 28 - 36 | Religion |
| Unique Museum-Piece, An | Brohier | Journal of the D.B.U. | 1960 | L | 1 & 2 | 6 - 8 | History |
| Unique Position of Sinhala Women, The: A Historical Perspective | Iriyagolle | Journal of the Royal Asiatic Society | 1989/90 | XXXIV New Series | N/A | 78 - 101 | General |
| Unique Samanalawewa Area, The - A Plea for its Protection | Hoffmann | Loris | 1990 | XIX | 1 | 2 - 4 | General |
| Unique Swamp Forest of Bulathsinhala is Still Alive, The | Wijesinghe | Loris | 1988 | XVIII | 1 | 14 - 15 | General |
| United Nations Projects in Ceylon | N/A | Ceylon Today | 1965 | 14 | 7 | 6 - 12 | General |
| University Dons & the Writ of Certiorari | Sanmuganathan | Ceylon Journal of Historical & Social Studies, The | 1961 | 4 | 2 | 97 - 105 | General |
| University History of Ceylon, The | Paranavitana | Ceylon Today | 1960 | 9 | 9 | 1 - 5 | History |
| University Moves to Peradeniya, The | N/A | Ceylon Today | 1952 | 1 | 1 | 1 - 3 | General |
| Unnichchai Colony. The Agricultural Geography of a Peasant Colonisation Scheme in the Dry Zone | Fonseka | Ceylon Journal of Historical & Social Studies, The | 1966 | 9 | 2 | 120 - 133 | General |
| Unsworn Statements by Accused Persons: Trends in the Commonwealth | Peiris | University of Colombo Review | 1981 | 1 | 1 | 1 - 19 | General |
| Untamed Beauty | Trebay | Travel + Leisure | Jan-Feb 2007 | N/A | N/A | 118 - 130 | General |
| Unusual Home, An - Water Spider | Balasuriya | Loris | 1979 | XV | 1 | 30 - 31 | General |
| Unusual Incident, An - Elephants | Dharmasena | Loris | 1994 | XX | 4 | 189 - 191 | General |
| Unusual Stilt From Sri Lanka, An | De Silva | Loris, Vol 23, No's 3 & 4, 2003 | 2003 | 23 | 3 & 4 | 50 | General |
| Up To Date Information on Sri Lanka's Forest Cover | Geiser | Loris | 1982 | XVI | 2 | 66 - 69 | General |
| Urbanization in Ceylon, 1946-1963 | Jones | Modern Ceylon Studies | 1970 | 1 | 2 | 199 - 212 | General |
| Urn Burials of Pomparippu, The | Jayawickrema | Loris | 1972 | XII | 5 | 254, 257 | General |
| Uruwarige Tissahamy - The Patriach of Dambane | Kuruppu | Loris | 1991 | XIX | 3 | 97 - 99 | General |
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